Future use of MFT lenses

One of the fun things with the Micro Four Thirds (MFT) format, is the short flange distance (20mm), which enables the possibility of making adapters for a number of formats. There are cheap, abundant adapters for many legacy formats, e.g., Nikon F and Pentax K, to name a few.

When MFT becomes legacy

However, the flip side of the coin is that some day, inevitably, MFT is also going to become a legacy format. What happens with your gorgeous, and expensive, MFT lenses then?

Let's say that the worst case scenario is that, due to competition, the MFT system loses so much volume that it is abandoned by Olympus and Panasonic. It doesn't seem likely now, but stranger things have happened.

You can still use your old cameras and lenses, of course, but at some point you will want a newer camera, due to new features and better image quality. Can you still use your MFT lenses on some camera from another system?

If Samsung NX becomes dominating

The Samsung NX format is one of the competitors in the mirrorless system category. Let's say this format becomes dominating. Can you use your old MFT lenses on this format through an adapter?

In short: No. It's not possible. The Samsung NX format has a longer flange distance (25.50mm), meaning that even if you made a very short adapter, the MFT lenses would not be able to focus to infinity. You could only use them as short focus macro lenses. Which is not very useful.

If Sony E becomes dominating

The Sony E format was introduced for their new NEX series. It has a flange distance which is 2mm shorter than the MFT format. This is good news, because 2mm, while pretty short, is probably enough to make an adapter for using MFT lenses on Sony E. The Sony E format also has a wider flange diameter, which makes it easier to design an adapter.

However, the MFT lenses are pretty useless without the possibility to operate the focus and the aperture. And both are operated electronically, controlled by the camera. So an adapter must have the relevant software to interpret the Sony E signals, and translate them into something that the MFT lenses understand.

This kind of electronic communication might sound easy, however, it is probably far from trivial. And at best, your autofocus would probably be very poor, both the speed, and, possibly, also the accuracy.

For a comparison, let's consider the Canon EF system. There are adapters for using Canon EF lenses on MFT cameras, but none of them can control the aperture or the focus. So the probability of getting future adapters that provide this feature for MFT lenses seems pretty slim, given that there are many magnitudes more Canon EF lenses out there than MFT lenses.

Conclusion

The conclusion is that if the MFT system is abandoned, your lenses are more or less useless.

On the other hand, there are some rumors now that the modular Ricoh GXR system will include a Micro Four Thirds mount/sensor module. If launched, this will enable mounting a MFT lens to the Ricoh GXR camera, with an adapter mount/sensor module.

Update December 2010

Since I wrote this article, an adapter for using MFT lenses on Sony E cameras (NEX) has actually emerged.  However, since it has no electronic contact, it can not control neither the focus nor the aperture.  So you're stuck with a focus around infinity, and the max aperture.  You can, however, use it with the Cosina Nokton 25mm f/0.95, which is a completely manual lens, with a mechanical focus ring, and a mechanical aperture ring.

Introduction

This blog is a user's perspective on the Micro Four Thirds camera system. While I intend to keep the contents fact based, there are many areas where no objective truth is available, and hence there is room for different opinions and discussions. I would like to encourage you to contribute with your own experiences or opinions to this blog through the comments fields.

The Micro Four Thirds system was announced jointly by Olympus and Panasonic on August 5th, 2008. The first camera model was launched in November the same year.

Since this time, a number of cameras and lenses have become available for this system. While you can use Micro Four Thirds Olympus lenses with Panasonic cameras and vice versa, they have effectively made two different subsystems due to a different approach to optical image stabilization (OIS): Olympus cameras have images stabilization based on sensor shift inside the body, and no lens based OIS. Panasonic, on the other hand, do not use sensor shift image stabilization at all, but rather employ OIS through some lenses, by having some moving lens groups that are intended to cancel the negative effect of camera shake. These Panasonic lenses are denoted with the trademark "Mega O.I.S.".